Free AutoCAD Books and AutoCAD LT eBooks Civil EngineeringAutoCAD. As mentioned above, AutoCAD is one of the most commonly used CAD programs on the market. It is the flagship software from Autodesk, and offers users powerful 2D …... Let’s use the image below to practice in AutoCAD. The following figure is a 2D figure and where all data are being provided. We should be able to replicate this with ease. Step by Step AutoCAD exercise Step 1. Draw the following line. Step 2. Draw the second line starting from the right end of the previously drawn line. Use @50